[pph]

"Fernverkehr" (long-distance: ICE, IC, EC) is excluded, "Nahverkehr" (RB, RE, S, U, Bus) included.

[fock]

still you can for example go from Berlin to Munich in about 10h with the latter option. (was 50€/day last time I tried for fun...)

[moooo99]

Its also worth mentioning that there are express connections between big cities that are relatively close. For example, there is a sprinter connection between Nürnberg and Munich that takes about 90 minutes using a regional train instead of the 60 minutes it would take with an ICE.

[Zetobal]

Most IREs are included as well.